<template>
  <div class="login_container">
    <div class="login_box">
      <div class="avatar_box">
        <img src="../assets/logo.png" alt />
      </div>
      <el-form
        ref="loginFormRef"
        :model="loginFrom"
        :rules="loginFormRules"
        label-width="0px"
        class="login_form"
      >
        <el-form-item prop="username">
          <el-input v-model="loginFrom.username" prefix-icon="iconfont icon-user"></el-input>
        </el-form-item>
        <el-form-item prop="password">
          <el-input
            v-model="loginFrom.password"
            prefix-icon="iconfont icon-3702mima"
            type="password"
          ></el-input>
        </el-form-item>
        <el-form-item class="btns">
          <el-button type="primary" @click="login">登录</el-button>
          <el-button type="info" @click="resetLoginForm">重置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>
<script>
export default {
  data() {
    return {
      loginFrom: {
        username: '',
        password: ''
      },
      loginFormRules: {
        username: [
          { required: true, message: '请输入用户名称', trigger: 'blur' },
          {
            min: 3,
            max: 10,
            message: '长度在3个到10个个字符之间',
            trigger: 'blur'
          }
        ],
        password: [
          { required: true, message: '请输入用户登录密码', trigger: 'blur' },
          {
            min: 6,
            max: 15,
            message: '长度在6个到15个个字符之间',
            trigger: 'blur'
          }
        ]
      }
    }
  },
  methods: {
    resetLoginForm() {
      this.$refs.loginFormRef.resetFields()
    },
    login() {
      this.$refs.loginFormRef.validate(async (valid) => {
        if (!valid) return
        // eslint-disable-next-line no-unused-vars
        const { data: res } = await this.$http.post('login', this.loginFrom) // 的第一个花括号等于是解构函数用来把对象的data属性赋值为res
        if (res.meta.status !== 200) return this.$message.error('登录失败')
        this.$message.success('登录成功')
        window.sessionStorage.setItem('token', res.data.token)
        this.$router.push('/home') // 进行跳转
      })
    }
  }
}
</script>
<style lang="less" scoped>
.login_container {
  background-color: #2b4b6b;
  height: 100%;
}
.login_box {
  //先画一个框
  width: 450px;
  height: 300px;
  background-color: #fff;
  border-radius: 30px; //圆角的度数
  position: absolute; //相对定位
  left: 50%; //距离左边50%
  top: 50%; //距离上边50%
  transform: translate(
    -50%,
    -50%
  ); //参考自己的位置平移  向左移动50%  向右移动50%
  .avatar_box {
    //中间的图标
    height: 130px;
    width: 130px;
    border: 1px solid #eee;
    border-radius: 50%; //圆角度数
    padding: 10px;
    box-shadow: 0 0 10px #ddd; //添加阴影
    position: absolute;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: #fff;
    img {
      width: 100%;
      height: 100%;
      border-radius: 50%;
      background-color: #eee;
    }
  }
}
.login_form {
  position: absolute;
  bottom: 0;
  width: 100%;
  padding: 0 20px;
  box-sizing: border-box;
}
.btns {
  display: flex;
  justify-content: fiex-end;
}
</style>
